// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: packagemanager.cc,v 1.6 1998/11/22 03:20:33 jgg Exp $
+// $Id: packagemanager.cc,v 1.30 2003/04/27 03:04:15 doogie Exp $
/* ######################################################################
Package Manager - Abstacts the package manager
#ifdef __GNUG__
#pragma implementation "apt-pkg/packagemanager.h"
#endif
+
#include <apt-pkg/packagemanager.h>
#include <apt-pkg/orderlist.h>
#include <apt-pkg/depcache.h>
#include <apt-pkg/acquire-item.h>
#include <apt-pkg/algorithms.h>
#include <apt-pkg/configuration.h>
+#include <apt-pkg/sptr.h>
+
+#include <apti18n.h>
+#include <iostream>
/*}}}*/
+using namespace std;
+
// PM::PackageManager - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
-pkgPackageManager::pkgPackageManager(pkgDepCache &Cache) : Cache(Cache)
+pkgPackageManager::pkgPackageManager(pkgDepCache *pCache) : Cache(*pCache)
{
FileNames = new string[Cache.Head().PackageCount];
List = 0;
bool pkgPackageManager::GetArchives(pkgAcquire *Owner,pkgSourceList *Sources,
pkgRecords *Recs)
{
- pkgCache::PkgIterator I = Cache.PkgBegin();
- for (;I.end() != true; I++)
- {
- // Not interesting
- if ((Cache[I].InstallVer == (pkgCache::Version *)I.CurrentVer() &&
- I.State() != pkgCache::PkgIterator::NeedsUnpack) ||
- Cache[I].Delete() == true)
- continue;
+ if (CreateOrderList() == false)
+ return false;
+
+ if (List->OrderUnpack() == false)
+ return _error->Error("Internal ordering error");
+
+ for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
+ {
+ PkgIterator Pkg(Cache,*I);
+ FileNames[Pkg->ID] = string();
- new pkgAcqArchive(Owner,Sources,Recs,Cache[I].InstVerIter(Cache),
- FileNames[I->ID]);
+ // Skip packages to erase
+ if (Cache[Pkg].Delete() == true)
+ continue;
+
+ // Skip Packages that need configure only.
+ if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure &&
+ Cache[Pkg].Keep() == true)
+ continue;
+
+ // Skip already processed packages
+ if (List->IsNow(Pkg) == false)
+ continue;
+
+ new pkgAcqArchive(Owner,Sources,Recs,Cache[Pkg].InstVerIter(Cache),
+ FileNames[Pkg->ID]);
}
+
return true;
}
/*}}}*/
/* This is called to correct the installation when packages could not
be downloaded. */
bool pkgPackageManager::FixMissing()
-{
- pkgProblemResolver Resolve(Cache);
+{
+ pkgProblemResolver Resolve(&Cache);
+ List->SetFileList(FileNames);
+ bool Bad = false;
for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
{
- if (Cache[I].Keep() == true)
+ if (List->IsMissing(I) == false)
continue;
- if (FileNames[I->ID].empty() == false || Cache[I].Delete() == true)
- continue;
- Cache.MarkKeep(I);
+
+ // Okay, this file is missing and we need it. Mark it for keep
+ Bad = true;
+ Cache.MarkKeep(I, false, false);
}
+
+ // We have to empty the list otherwise it will not have the new changes
+ delete List;
+ List = 0;
+
+ if (Bad == false)
+ return true;
// Now downgrade everything that is broken
return Resolve.ResolveByKeep() == true && Cache.BrokenCount() == 0;
}
/*}}}*/
+// PM::CreateOrderList - Create the ordering class /*{{{*/
+// ---------------------------------------------------------------------
+/* This populates the ordering list with all the packages that are
+ going to change. */
+bool pkgPackageManager::CreateOrderList()
+{
+ if (List != 0)
+ return true;
+
+ delete List;
+ List = new pkgOrderList(&Cache);
+
+ bool NoImmConfigure = !_config->FindB("APT::Immediate-Configure",true);
+
+ // Generate the list of affected packages and sort it
+ for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
+ {
+ // Ignore no-version packages
+ if (I->VersionList == 0)
+ continue;
+
+ // Mark the package and its dependends for immediate configuration
+ if (((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential ||
+ (I->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important) &&
+ NoImmConfigure == false)
+ {
+ List->Flag(I,pkgOrderList::Immediate);
+
+ // Look for other packages to make immediate configurea
+ if (Cache[I].InstallVer != 0)
+ for (DepIterator D = Cache[I].InstVerIter(Cache).DependsList();
+ D.end() == false; D++)
+ if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends)
+ List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
+
+ // And again with the current version.
+ if (I->CurrentVer != 0)
+ for (DepIterator D = I.CurrentVer().DependsList();
+ D.end() == false; D++)
+ if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends)
+ List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
+ }
+
+ // Not interesting
+ if ((Cache[I].Keep() == true ||
+ Cache[I].InstVerIter(Cache) == I.CurrentVer()) &&
+ I.State() == pkgCache::PkgIterator::NeedsNothing &&
+ (Cache[I].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall &&
+ (I.Purge() != false || Cache[I].Mode != pkgDepCache::ModeDelete ||
+ (Cache[I].iFlags & pkgDepCache::Purge) != pkgDepCache::Purge))
+ continue;
+
+ // Append it to the list
+ List->push_back(I);
+ }
+
+ return true;
+}
+ /*}}}*/
// PM::DepAlwaysTrue - Returns true if this dep is irrelevent /*{{{*/
// ---------------------------------------------------------------------
/* The restriction on provides is to eliminate the case when provides
{
for (;D.end() == false; D++)
{
- if (D->Type != pkgCache::Dep::Conflicts)
+ if (D->Type != pkgCache::Dep::Conflicts &&
+ D->Type != pkgCache::Dep::Obsoletes)
+ continue;
+
+ // The package hasnt been changed
+ if (List->IsNow(Pkg) == false)
continue;
- if (D.ParentPkg() == Pkg)
+ // Ignore self conflicts, ignore conflicts from irrelevent versions
+ if (D.ParentPkg() == Pkg || D.ParentVer() != D.ParentPkg().CurrentVer())
continue;
- if (pkgCheckDep(D.TargetVer(),Ver,D->CompareOp) == false)
+ if (Cache.VS().CheckDep(Ver,D->CompareOp,D.TargetVer()) == false)
continue;
- if (List->IsNow(Pkg) == false)
- continue;
-
if (EarlyRemove(D.ParentPkg()) == false)
- return false;
- }
+ return _error->Error("Reverse conflicts early remove for package '%s' failed",
+ Pkg.Name());
+ }
return true;
}
/*}}}*/
that the final configuration is valid. */
bool pkgPackageManager::ConfigureAll()
{
- pkgOrderList OList(Cache);
+ pkgOrderList OList(&Cache);
// Populate the order list
for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
of it's dependents. */
bool pkgPackageManager::SmartConfigure(PkgIterator Pkg)
{
- pkgOrderList OList(Cache);
+ pkgOrderList OList(&Cache);
if (DepAdd(OList,Pkg) == false)
return false;
if (OList.OrderConfigure() == false)
return false;
-
+
// Perform the configuring
for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++)
{
return true;
if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == false)
return false;
-
-
+
// Put the package on the list
OList.push_back(Pkg);
OList.Flag(Pkg,pkgOrderList::Added);
if (Bad == false)
continue;
- Version **VList = D.AllTargets();
+ SPtrArray<Version *> VList = D.AllTargets();
for (Version **I = VList; *I != 0 && Bad == true; I++)
{
VerIterator Ver(Cache,*I);
if (Cache[Pkg].InstallVer != *I ||
(Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing))
continue;
+
if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == true)
Bad = !DepAdd(OList,Pkg,Depth);
if (List->IsFlag(Pkg,pkgOrderList::Configured) == true)
Bad = false;
}
- delete [] VList;
}
if (Bad == true)
// Woops, it will not be re-installed!
if (List->IsFlag(Pkg,pkgOrderList::InList) == false)
return false;
+
+ // Essential packages get special treatment
+ bool IsEssential = false;
+ if ((Pkg->Flags & pkgCache::Flag::Essential) != 0)
+ IsEssential = true;
+
+ /* Check for packages that are the dependents of essential packages and
+ promote them too */
+ if (Pkg->CurrentVer != 0)
+ {
+ for (DepIterator D = Pkg.RevDependsList(); D.end() == false &&
+ IsEssential == false; D++)
+ if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends)
+ if ((D.ParentPkg()->Flags & pkgCache::Flag::Essential) != 0)
+ IsEssential = true;
+ }
+
+ if (IsEssential == true)
+ {
+ if (_config->FindB("APT::Force-LoopBreak",false) == false)
+ return _error->Error(_("This installation run will require temporarily "
+ "removing the essential package %s due to a "
+ "Conflicts/Pre-Depends loop. This is often bad, "
+ "but if you really want to do it, activate the "
+ "APT::Force-LoopBreak option."),Pkg.Name());
+ }
bool Res = SmartRemove(Pkg);
if (Cache[Pkg].Delete() == false)
return true;
List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
- return Remove(Pkg);
+ return Remove(Pkg,(Cache[Pkg].iFlags & pkgDepCache::Purge) == pkgDepCache::Purge);
}
/*}}}*/
// PM::SmartUnPack - Install helper /*{{{*/
List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States);
if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
if (SmartConfigure(Pkg) == false)
- return _error->Error("Internal Error, Could not perform immediate configuraton");
+ return _error->Error("Internal Error, Could not perform immediate configuration (1) on %s",Pkg.Name());
return true;
}
-
+
/* See if this packages install version has any predependencies
that are not met by 'now' packages. */
for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList();
- D.end() == false; D++)
+ D.end() == false; )
{
- if (D->Type == pkgCache::Dep::PreDepends)
+ // Compute a single dependency element (glob or)
+ pkgCache::DepIterator Start;
+ pkgCache::DepIterator End;
+ D.GlobOr(Start,End);
+
+ while (End->Type == pkgCache::Dep::PreDepends)
{
// Look for possible ok targets.
- Version **VList = D.AllTargets();
+ SPtrArray<Version *> VList = Start.AllTargets();
bool Bad = true;
for (Version **I = VList; *I != 0 && Bad == true; I++)
{
Bad = !SmartConfigure(Pkg);
}
-
- delete [] VList;
-
- if (Bad == true)
- return _error->Error("Internal Error, Couldn't configure a pre-depend");
- continue;
+ /* If this or element did not match then continue on to the
+ next or element until a matching element is found */
+ if (Bad == true)
+ {
+ // This triggers if someone make a pre-depends/depend loop.
+ if (Start == End)
+ return _error->Error("Couldn't configure pre-depend %s for %s, "
+ "probably a dependency cycle.",
+ End.TargetPkg().Name(),Pkg.Name());
+ Start++;
+ }
+ else
+ break;
}
- if (D->Type == pkgCache::Dep::Conflicts)
+ if (End->Type == pkgCache::Dep::Conflicts ||
+ End->Type == pkgCache::Dep::Obsoletes)
{
/* Look for conflicts. Two packages that are both in the install
state cannot conflict so we don't check.. */
- Version **VList = D.AllTargets();
+ SPtrArray<Version *> VList = End.AllTargets();
for (Version **I = VList; *I != 0; I++)
{
VerIterator Ver(Cache,*I);
return _error->Error("Internal Error, Could not early remove %s",Pkg.Name());
}
}
- delete [] VList;
}
}
// Check for reverse conflicts.
- CheckRConflicts(Pkg,Pkg.RevDependsList(),
- Cache[Pkg].InstVerIter(Cache).VerStr());
+ if (CheckRConflicts(Pkg,Pkg.RevDependsList(),
+ Cache[Pkg].InstVerIter(Cache).VerStr()) == false)
+ return false;
+
for (PrvIterator P = Cache[Pkg].InstVerIter(Cache).ProvidesList();
P.end() == false; P++)
CheckRConflicts(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion());
// Perform immedate configuration of the package.
if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
if (SmartConfigure(Pkg) == false)
- return _error->Error("Internal Error, Could not perform immediate configuraton");
+ return _error->Error("Internal Error, Could not perform immediate configuration (2) on %s",Pkg.Name());
return true;
}
// PM::OrderInstall - Installation ordering routine /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool pkgPackageManager::OrderInstall()
+pkgPackageManager::OrderResult pkgPackageManager::OrderInstall()
{
- delete List;
- List = new pkgOrderList(Cache);
-
- // Generate the list of affected packages and sort it
- for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
- {
- // Consider all depends
- if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
- {
- List->Flag(I,pkgOrderList::Immediate);
- if (Cache[I].InstallVer != 0)
- for (DepIterator D = Cache[I].InstVerIter(Cache).DependsList();
- D.end() == false; D++)
- if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends)
- List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
- if (I->CurrentVer != 0)
- for (DepIterator D = I.CurrentVer().DependsList();
- D.end() == false; D++)
- if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends)
- List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
- }
-
- // Not interesting
- if ((Cache[I].Keep() == true ||
- Cache[I].InstVerIter(Cache) == I.CurrentVer()) &&
- I.State() == pkgCache::PkgIterator::NeedsNothing)
- continue;
-
- // Append it to the list
- List->push_back(I);
-
- if ((I->Flags & pkgCache::Flag::ImmediateConf) == pkgCache::Flag::ImmediateConf)
- List->Flag(I,pkgOrderList::Immediate);
- }
+ if (CreateOrderList() == false)
+ return Failed;
+ Reset();
+
if (Debug == true)
clog << "Begining to order" << endl;
-
- if (List->OrderUnpack() == false)
- return _error->Error("Internal ordering error");
+ if (List->OrderUnpack(FileNames) == false)
+ {
+ _error->Error("Internal ordering error");
+ return Failed;
+ }
+
if (Debug == true)
clog << "Done ordering" << endl;
+ bool DoneSomething = false;
for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
{
PkgIterator Pkg(Cache,*I);
+
+ if (List->IsNow(Pkg) == false)
+ {
+ if (Debug == true)
+ clog << "Skipping already done " << Pkg.Name() << endl;
+ continue;
+ }
+
+ if (List->IsMissing(Pkg) == true)
+ {
+ if (Debug == true)
+ clog << "Sequence completed at " << Pkg.Name() << endl;
+ if (DoneSomething == false)
+ {
+ _error->Error("Internal Error, ordering was unable to handle the media swap");
+ return Failed;
+ }
+ return Incomplete;
+ }
// Sanity check
- if (Cache[Pkg].Keep() == true && Pkg.State() == pkgCache::PkgIterator::NeedsNothing)
- return _error->Error("Internal Error, trying to manipulate a kept package");
+ if (Cache[Pkg].Keep() == true &&
+ Pkg.State() == pkgCache::PkgIterator::NeedsNothing &&
+ (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
+ {
+ _error->Error("Internal Error, trying to manipulate a kept package");
+ return Failed;
+ }
// Perform a delete or an install
if (Cache[Pkg].Delete() == true)
{
if (SmartRemove(Pkg) == false)
- return false;
+ return Failed;
}
else
if (SmartUnPack(Pkg) == false)
- return false;
+ return Failed;
+ DoneSomething = true;
}
// Final run through the configure phase
if (ConfigureAll() == false)
- return false;
+ return Failed;
// Sanity check
for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
+ {
if (List->IsFlag(*I,pkgOrderList::Configured) == false)
- return _error->Error("Internal error, packages left unconfigured. %s",
- PkgIterator(Cache,*I).Name());
-
- return true;
+ {
+ _error->Error("Internal error, packages left unconfigured. %s",
+ PkgIterator(Cache,*I).Name());
+ return Failed;
+ }
+ }
+
+ return Completed;
}
/*}}}*/
// PM::DoInstall - Does the installation /*{{{*/
// ---------------------------------------------------------------------
/* This uses the filenames in FileNames and the information in the
DepCache to perform the installation of packages.*/
-bool pkgPackageManager::DoInstall()
+pkgPackageManager::OrderResult pkgPackageManager::DoInstall(int statusFd)
{
- return OrderInstall() && Go();
+ if(DoInstallPreFork() == Failed)
+ return Failed;
+
+ return DoInstallPostFork(statusFd);
}
/*}}}*/
projects / apt.git / blobdiff